JPH0115743Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a trap provided for deodorizing drainage water in a drainage route.

(Prior Art) As shown in Figure 3, a conventional trap has a main body a, a trap part d that receives inflow water introduced from the outside through an introduction pipe b and an elbow c, and a trap part d that receives inflow water introduced from the outside through an introduction pipe b and an elbow c. A tubular invert part e with an open upper part is provided to receive overflow water and discharge it to the outside.By positioning the tip of the elbow c below the water surface of the trap part d, drainage odor inside the main body a is eliminated. This prevents the liquid from flowing back into the introduction pipe b.

(Problems to be Solved by the Invention) In the conventional device described above, the tip of the elbow c enters the trap portion d, so the distance between the elbow c and the trap portion d becomes relatively narrow, and the tip of the elbow c enters the trap portion d. It has the drawback that it is easily clogged with dirt, and since dirt settles inside the trap section d, the flow becomes even worse.

If it becomes clogged with dirt, it is necessary to remove the glued elbow c, which makes cleaning difficult.

Furthermore, although a drain pipe is connected to the invert e, its center is eccentric from the center of the main body a, which is circular in plan, and this has the disadvantage of complicating construction work when a large number of traps are installed.

The present invention aims to solve these drawbacks.

(Means for Solving Problems) According to the present invention, the trap body has an open trap section that receives inflow water from the outside, and an upper part that receives overflow water from the trap section and discharges it to the outside. In the case where the trap section is provided with a tubular invert section, the trap section is formed of a bent pipe that detours around the lower outer periphery of the invert section.

(Function) The inflow water that flows in from the outside through the introduction pipe passes through the trap part, overflows to the invert part, and from there flows out to the drain pipe. Since it is constructed of pipes, there are no narrow areas where filth can become clogged, and sediments do not accumulate easily, allowing for smooth drainage.

(Embodiment) An embodiment of the present invention will be explained with reference to Figs. 1 and 2. 1 is a main body of a trap mass made of synthetic resin and has a substantially cylindrical shape, and 2 is a trap formed on the upper side of the main body 1. At the inlet, there is an introduction pipe 3 outside the inlet 2.
is connected.

Reference numeral 4 indicates a trap portion connected to the main body 1 side of the inlet 2, and 5 indicates an invert portion formed at a location lower than the inlet 2 of the main body 1.

The invert portion 5 is formed into a tubular shape with an open upper end 6, and both ends thereof are formed into cylindrical connecting portions 8, 8 to which a drain pipe 7 is attached, as seen in FIG.

The trap section 4 is formed of a curved tube having approximately the same diameter as the inlet 2, the middle 4a thereof is curved along the lower part of the tubular invert section 5, and the tip 4b is on the side of the invert section 4 opposite to the inlet 2. Open on the side.

The main body 1 is normally buried in the ground, but a raised pipe 9 with a cover plate is connected above it as necessary, and the interior of the main body 1 can be repaired, cleaned, etc. via this.

Inflow water such as sewage flowing into the inlet 2 flows through the trap part 4 and overflows from its tip 4b to the invert part 5 and is drained, but the trap part 4 is inverted until it overflows from the inlet 2. It is composed of a series of curved pipes that bypass section 5, and since they are not opened midway, they flow easily and do not become clogged with waste.

Moreover, since the invert part 5 can be formed through the center of the main body 1, it is small and can be easily aligned with the drain pipe, which is convenient for construction.

(Effects of the invention) According to the invention, since the trap part is formed by a curved pipe that detours around the lower outer periphery of the invert part, water flows easily and sediment is difficult to form, and a uniform flow area can be obtained. This makes it difficult for dirt to become clogged, the trap can be easily cleaned from the end, and the invert part can be placed in the center of the main body, making construction easier.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional side view of an embodiment of the present invention, FIG. 2 is a cross-sectional plan view taken along the -line, and FIG. 3 is a cross-sectional view of a conventional example. 1... Main body, 4... Trap section, 5... Invert section.

Claims (1)

[Scope of utility model registration request] The main body of the trap is provided with a trap section that receives inflow water from the outside, and a tubular invert section that is open at the top and receives overflow water from the trap section and discharges it to the outside. The trap section is formed by a bent pipe that detours around the lower outer periphery of the invert section.